CN2565610Y - Air circulation refrigerating device for preparing powder material - Google Patents
Air circulation refrigerating device for preparing powder material Download PDFInfo
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- CN2565610Y CN2565610Y CN 02264345 CN02264345U CN2565610Y CN 2565610 Y CN2565610 Y CN 2565610Y CN 02264345 CN02264345 CN 02264345 CN 02264345 U CN02264345 U CN 02264345U CN 2565610 Y CN2565610 Y CN 2565610Y
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- cyclone separator
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Abstract
The utility model relates to an air circulation refrigerating device for preparing power material. The utility model is characterized in that an outlet of an air compressor is connected with a hot edge of a heat exchanger through a pipeline, an air pipe of an outlet of the hot edge of the heat exchanger is connected with a turbine expander, and an outlet of the pressure reducing end of the turbine expander is connected with a refrigerating chamber; a cabin opening of a material sealing cabin is provided with a disk valve, an outlet of the material sealing cabin is connected to the refrigerating chamber through a screw feeder, an outlet of the refrigerating chamber is connected with a cold mill, an outlet of which is connected to a cyclone separator, an air outlet of which and the outlet of the cold edge of a final stage heat exchanger are simultaneously connected to the cold end of a primary heat exchanger and are connected back to an inlet of the air compressor, and a material outlet of the cyclone separator is connected to a finished product packaging system through an anti-block locking air valve. After the utility model is adopted, the corresponding new process can be adopted, the new device and process can meet the requirements of the modern industry for small grain size plastic power and process requirements for pulverizing other materials, and finer material powder such as plastic, etc. can be produced with lower cost.
Description
Technical field
The utility model belongs to low temperature and powder technology, relates to a kind of air circulation refrigerating plant of producing powder.
Background technology
The background technology that the utility model relates to is mainly aspect two: the first is the freezing plastics of cold-producing medium with the liquid nitrogen, produces the technology of plastic powders; It two is to utilize air to produce the technology of rubber powder for cold-producing medium.The former makes powder with the plastic pellet that granulation goes out, and is widely used in the processing of clothes, and its market prospects are good.But the plastic powders particle diameter that the normal temperature disintegrating process is produced is thicker, can not satisfy the requirement of rag trade well, so generally adopt the low-temperature grinding method, for example adopting liquid nitrogen is cold-producing medium, plastic grain is soaked or spray, make it to drop to below the brittle temperature, row is pulverized again.Because China's liquid nitrogen source difficulty makes the production cost of this method higher, limited it in industrial being extensive use of.Another background technology is the pulverizing that the air conditioner refrigerating technology of using on the aircraft is used for waste old, for example No. 95111135.3 Chinese invention patents.This patent is used for rubber pulverizes and can obtain better effects, but aims at the crushing rubber design, if want it is transplanted in the material grinding technology such as plastics, then since the difference of two kinds of material quality must on technology and equipment, make improvements.For example general plastics can not reunited because of water content as rubber, so do not need to be provided with the multilevel drying fluid bed; Freezing fluid bed originally also is not suitable for the freezing of material such as plastics, needs redesign refrigerating chamber etc.Above reason forces us when carrying out the pulverizing of plastics and other materials, must make a lot of improvement on Processes and apparatus.
Summary of the invention
In order to satisfy the demand of modern industry to the small grain size plastic powders, and the technological requirement that unclassified stores is pulverized, the utility model will be made improvement to traditional refrigerating process and existing equipment, a kind of new device is provided, make it more can satisfy the requirement of plastics and the pulverizing of other materials, produce the thinner plastic powders or the powder of unclassified stores with cheaper cost.
The technical scheme that realizes the foregoing invention task is: the air circulation refrigerating plant of producing powder, the air compressor outlet connects the hot limit of heat exchanger through pipeline, the air duct of exchanger heat limit outlet connects turbo-expander, the turbo-expander step-down brings out mouth and connects refrigerating chamber, the Hatch Opening of material gas-tight silo is provided with the dish valve, the outlet of material gas-tight silo connects refrigerating chamber through screw(-type) feeder, the refrigerating chamber outlet connects the low temperature mill, low temperature grinds mouth and connects cyclone separator, the pipeline of the air outlet slit of cyclone separator and final stage heat exchanger cold limit outlet connects the cold junction of primary heat exchanger simultaneously, take back air compressor inlet again, the material outlet of cyclone separator inserts the finished product packing system through the antiblocking lock air-valve.After adopting above equipment, following technology is implemented, idiographic flow is: compressed air is after the heat exchanger heat exchange, enter the turbine end swell refrigeration of turbo-expander, Cryogenic air enters carries out freezing to feed product in the refrigerating chamber, material is through dish valve and gas-tight silo, enter refrigerating chamber through screw(-type) feeder again, material and Cryogenic air are carried out exchange heat in refrigerating chamber, material is frozen to below the brittle temperature, together enter the low temperature mill with the air after the heat exchange, material is ground into powder.Grind next powder-gas mixture after cyclone separator separates from low temperature, the air of pure air and final stage heat exchanger cold limit outlet together enters the cold junction of primary heat exchanger, carry out exchange heat with the hot-air after the compression, air themperature is returned to positive temperature, after filtering, dry, clean air is got back to air compressor inlet and is recycled.The powder that separates through cyclone separator enters the finished product packing system through the antiblocking lock air-valve.
Here said feed arrangement unlike the prior art be: be provided with the material gas-tight silo, its Hatch Opening is provided with the dish valve, and when device work and not charging, the dish valve cuts out, and make to form certain pressure in the gas-tight silo, so material is easier to enter refrigerating chamber.Overcome the drawback that prior art hinders material to enter because of the malleation in the refrigerating chamber.Here said refrigerating chamber is a new construction, and is different fully with freezing fluid bed: indoorly be provided with two screw(-type) feeders, raw material moves in batcher, and low-temperature receiver is full of whole chamber, makes raw material fully cooling in whole screwfeed process.Can adjust the time of particle by the rotating speed of adjusting screw(-type) feeder, thereby reach the purpose of its temperature of control at refrigerating chamber.Said low temperature mill is characterized in operate as normal at low temperatures for the gas shock mill, is specifically designed to the pulverizing of low-temperature material.By adjusting progression, revolution and the blade number of pulverizing, can obtain different grinding particle sizes.
Above equipment has following prioritization scheme:
1, magnetic separator was set before gas-tight silo, the dish valve is arranged on the import and export of magnetic separator.
2, between air compressor outlet and turbo-expander, be provided with separator and oil filter.
3, " the turbo-expander step-down brings out mouth and connects refrigerating chamber " changed into following mode: the turbo-expander step-down brings out a mouthful pipeline and is divided into two-way, and one the tunnel connects refrigerating chamber, and another road connects the cold limit inlet of final stage heat exchanger.Like this, the Cryogenic air after the cooling of expanding just is divided into two parts, in portion of air enters refrigerating chamber to former material carry out freezing, remaining air causes the cold limit inlet of final stage heat exchanger (main ice chest).This improvement has improved the efficient of main ice chest with the Cryogenic air of the turbo-expander outlet low-temperature receiver as the final stage heat exchanger.
4, low temperature grinds the powder-gas mixture that comes and inserts first order cyclone separator through pipeline, the gas vent of cyclone separator connects second level cyclone separator, the gas vent of second level cyclone separator connects the low temperature sack cleaner, low temperature sack cleaner air outlet slit connects the cold junction of heat exchanger by filter, returns air compressor inlet.Like this, corresponding working procedures is: grind next powder-gas mixture after first order cyclone separator separates from low temperature, gas enters second level cyclone separator to be separated once more, and isolated air is again through the dedusting of low temperature sack cleaner, and the air that comes out is clean more.
5, the regeneration cold blowing system of mole sieve drier has a style of one's own, and the air of Roots blower outlet inserts drier through air electric furnace, muffler, connects molecular sieve again, connects muffler at last, and silencing end feeds atmosphere.
6, the finished product packing system is a circulatory system independently, and equipment is made up of centrifugal fan and spiral separator.
The utility model is pulverized the technology that plastics are produced plastic powders to traditional cold-producing medium such as liquid nitrogen that utilizes, with utilize air and produce the technology of rubber fine powder as cold-producing medium, transform and make up, create the air circulation freezing equipment of producing powder such as plastics make new advances.The technology that new equipment and this equipment provide can satisfy the demand of modern industry to the small grain size plastic powders, and to the technological requirement that unclassified stores is pulverized, can produce the thinner plastic powders or the powder of other various materials with cheaper cost.
Description of drawings
Fig. 1 is the utility model embodiment 1 equipment flowsheet schematic diagram.
The specific embodiment
Embodiment 1, and with reference to Fig. 1: produce the air circulation refrigerating plant of plastic powders, its flow process is: air compressor 1 sucks air from atmosphere, be compressed to 7kgf/cm
2After separator 2 and oil filter 3 are removed the water and the oil of free state, after mole sieve drier 4 (or 5 or 6) adsorption dry, enter the compressor secondary booster that turbo-expander 19 drives through filter 7, air behind the secondary booster enters the turbine step-down end swell refrigeration of turbo-expander 19 after heat exchanger 8,9 or multi-stage heat exchanger heat exchange, air themperature drops to-130 ℃～-140 ℃, a Cryogenic air part causes the cold junction inlet of final stage heat exchanger 9, and remaining air enters and carries out freezing to feed product in the refrigerating chamber.Material is the irregular plastic grain of several millimeters of diameters, enter by hopper 28, through dish valve 29, magnetic separator 30, dish valve 31, gas-tight silo 32, enter refrigerating chamber 10 through screw(-type) feeder 33, material and Cryogenic air are carried out exchange heat in refrigerating chamber, material is frozen to below the brittle temperature, together enters low temperature mill 11 with air after heating up, and material is ground into powder.Grind next powder-gas mixture after first order cyclone separator 12 separates from low temperature, gas enters second level cyclone separator 13 to be separated once more, again through 14 dedustings of low temperature sack cleaner, filter 18 is taken in the sack cleaner outlet again, pure air that comes out and final stage heat exchanger 9 cold limit outlet airs together enter the cold junction of heat exchanger 8, hot-air behind cold junction air and the secondary booster carries out exchange heat, air themperature is returned to positive temperature, after sack cleaner 21 filtered once more, dry, clean air was got back to air compressor inlet and is recycled.The powder that separates through cyclone separator 12 enters the finished product packing system through antiblocking lock air-valve 15.This system is a circulatory system independently, is made up of centrifugal fan 16 and spiral separator 17.The regeneration cold blowing system of mole sieve drier has a style of one's own, for example: after drier 4 absorption are finished, start Roots blower 24 and air electric furnace 23, air enters system through muffler 25, air after heating is driven the moisture content of molecular sieve adsorption away, enters atmosphere through muffler 22.Regeneration finishes, and drier is carried out cold blowing, and the hot-air after the cold blowing is reduced to about normal temperature through water cooler 26 and air cooler 27 or temperature, gets back to air compressor inlet and recycles.Among the figure 20 is for laying the Instrument package storage tank of various instrument.
Claims (10)
1, a kind of air circulation refrigerating plant of producing powder, it is characterized in that: the air compressor outlet connects the hot limit of heat exchanger through pipeline, the air duct of exchanger heat limit outlet connects turbo-expander, the turbo-expander step-down brings out mouth and connects refrigerating chamber, the Hatch Opening of material gas-tight silo is provided with the dish valve, the outlet of material gas-tight silo connects refrigerating chamber through screw(-type) feeder, the refrigerating chamber outlet connects the low temperature mill, low temperature grinds mouth and connects cyclone separator, the pipeline of the air outlet slit of cyclone separator and final stage heat exchanger cold limit outlet connects the cold junction of primary heat exchanger simultaneously, take back air compressor inlet again, the material outlet of cyclone separator inserts the finished product packing system through the antiblocking lock air-valve.
2, according to the described air circulation refrigerating plant of producing powder of claim 1, it is characterized in that: be provided with magnetic separator before gas-tight silo, the dish valve is arranged on the import and export place of magnetic separator.
3, according to the described air circulation refrigerating plant of producing powder of claim 1, it is characterized in that: between air compressor outlet and turbo-expander, be provided with separator and oil filter.
4, according to claim 1 or the 2 or 3 described air circulation refrigerating plants of producing powder, it is characterized in that: the connected mode that the turbo-expander step-down brings out mouthful with refrigerating chamber is: the turbo-expander step-down brings out a mouthful pipeline and is divided into two-way, one the tunnel connects refrigerating chamber, and another road connects the cold limit inlet of final stage heat exchanger.
5, according to claim 1 or the 2 or 3 described air circulation refrigerating plants of producing powder, it is characterized in that: low temperature grinds the powder-gas mixture that comes and inserts first order cyclone separator through pipeline, the gas vent of cyclone separator connects second level cyclone separator, the gas vent of second level cyclone separator connects the low temperature sack cleaner, low temperature sack cleaner air outlet slit connects the cold junction of heat exchanger by filter, returns air compressor inlet.
6, according to the described air circulation refrigerating plant of producing powder of claim 4, it is characterized in that: low temperature grinds the powder-gas mixture that comes and inserts first order cyclone separator through pipeline, the gas vent of cyclone separator connects second level cyclone separator, the gas vent of second level cyclone separator connects the low temperature sack cleaner, low temperature sack cleaner air outlet slit connects the cold junction of heat exchanger by filter, returns air compressor inlet.
7, according to claim 1 or the 2 or 3 described air circulation refrigerating plants of producing powder, it is characterized in that: the regeneration cold blowing system of mole sieve drier has a style of one's own, the air of Roots blower outlet inserts drier through air electric furnace, muffler, connect molecular sieve again, connect muffler at last, silencing end feeds atmosphere.
8, according to the described air circulation refrigerating plant of producing powder of claim 4, it is characterized in that: the regeneration cold blowing system of mole sieve drier has a style of one's own, the air of Roots blower outlet inserts drier through air electric furnace, muffler, connect molecular sieve again, connect muffler at last, silencing end feeds atmosphere.
9, according to the described air circulation refrigerating plant of producing powder of claim 5, it is characterized in that: the regeneration cold blowing system of mole sieve drier has a style of one's own, the air of Roots blower outlet inserts drier through air electric furnace, muffler, connect molecular sieve again, connect muffler at last, silencing end feeds atmosphere.
10, according to the described air circulation refrigerating plant of producing powder of claim 6, it is characterized in that: the regeneration cold blowing system of mole sieve drier has a style of one's own, the air of Roots blower outlet inserts drier through air electric furnace, muffler, connect molecular sieve again, connect muffler at last, silencing end feeds atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02264345 CN2565610Y (en) | 2002-09-16 | 2002-09-16 | Air circulation refrigerating device for preparing powder material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02264345 CN2565610Y (en) | 2002-09-16 | 2002-09-16 | Air circulation refrigerating device for preparing powder material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2565610Y true CN2565610Y (en) | 2003-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02264345 Expired - Fee Related CN2565610Y (en) | 2002-09-16 | 2002-09-16 | Air circulation refrigerating device for preparing powder material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2565610Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102196891A (en) * | 2008-10-22 | 2011-09-21 | 西德尔合作公司 | Improved oven for the thermal conditioning of preforms made of a thermoplastic material |
| CN102950054A (en) * | 2011-08-31 | 2013-03-06 | 河南雷利矿山机械有限公司 | Low-temperature crushing vortex expansion-type medicine crushing |
| CN102972510A (en) * | 2012-11-28 | 2013-03-20 | 湖北新桥生物科技有限责任公司 | Processing method of dehydrated mountain pepper |
| CN106111289A (en) * | 2016-07-01 | 2016-11-16 | 菏泽市花王高压容器有限公司 | A kind of deep cooling crush machine and method of work thereof |
| CN112361637A (en) * | 2020-11-19 | 2021-02-12 | 中国电子科技集团公司第十六研究所 | Double-path parallel air-flotation turbine refrigerating system and working method thereof |
-
2002
- 2002-09-16 CN CN 02264345 patent/CN2565610Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102196891A (en) * | 2008-10-22 | 2011-09-21 | 西德尔合作公司 | Improved oven for the thermal conditioning of preforms made of a thermoplastic material |
| CN102196891B (en) * | 2008-10-22 | 2014-03-12 | 西德尔合作公司 | Improved oven for thermal conditioning of preforms made of thermoplastic material |
| CN102950054A (en) * | 2011-08-31 | 2013-03-06 | 河南雷利矿山机械有限公司 | Low-temperature crushing vortex expansion-type medicine crushing |
| CN102972510A (en) * | 2012-11-28 | 2013-03-20 | 湖北新桥生物科技有限责任公司 | Processing method of dehydrated mountain pepper |
| CN106111289A (en) * | 2016-07-01 | 2016-11-16 | 菏泽市花王高压容器有限公司 | A kind of deep cooling crush machine and method of work thereof |
| CN112361637A (en) * | 2020-11-19 | 2021-02-12 | 中国电子科技集团公司第十六研究所 | Double-path parallel air-flotation turbine refrigerating system and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |